The demonstration this month was on Chucking and Mounting pieces and was presented by Ken Ragsdale.
There are many ways to mount a piece on a lathe using various chucking techniques. They include, but are not limited to Longworth chucks, Cole Jaws, Collet Chucks, Donut Chucks, Soft Wood Chucks, Ring Faceplates, Jamb Chucks, Screw Chucks (Worm Chucks), Double Sided strong tape.
Longworth Chucks open and close all rubber stoppers simultaneously around the piece. Cole Jaws' stoppers must me moved into position and screwed uniformly around the piece. Donut Chucks encase the piece like a sandwich leaving the foot of the piece sticking out to be worked on. Ring faceplates have a dovetail ridge to expand your jaws into so if you have to take your piece off, it recenters itself when you put it back on the lathe.
Care should be taken around any type of chuck so no bodily appendages are damaged or removed. When using larger chucks like Cole Jaws or Longworth chucks, speeds should be lower in the range of 600-900 rpms. Refer to your manufacturer's recommended speeds for your specific chuck. In most cases, the maximum recommended speed is listed on the chuck itself.
To save time and hassle if you have multiple chucks, it is a best practice to size the minimum and max grip sizes of your chucks onto a paper so you have them for reference.
Green wood, or twice turned bowls will require a larger tenon because you need to recut it when it has dried and warped.
Faceplates are good to use for turning large items and can be removed or parted off once you have a tenon or mortise to grab onto the piece.
To prevent marring your pieces, wrap tape around either your tenon or jaws (for mortises). You can also use sticky backed cloth foam or non slip mats between your chuck, tailstock or Jamb chuck to prevent damage to your piece. If using a live center in your tailstock, you can use a piece of plastic, leather or rubber to prevent damage to your piece.
Tailstocks should be used with jaws.
You can get multiple #2 mortise tailstock adapters to move your tailstock further away from your piece.
When purchasing items like cole jaws, take note that a 14" diameter does not mean you will be able to use them to turn or finish a 14" bowl.
Jaws are specific to the chuck and in almost all cases are NOT interchangeable.
The following applications were recommended if using a glue block or waste block: High temperature hot glue - NOT regular hot glue; newspaper, double sided joint tape such as carpenter's tape, Duck Tape at Walmart.
Leon explained that the strongest chuck is a Collet Chuck. He demonstrated how they work and the benefits of using one.
In this month's Tips and Tricks, Leon guides us through all the types of chucks available on the market today with a nice spreadsheet view of sizes, prices and more.
Websites, Tools & Products Discussed
Walmart Double Sided Duct Tape: Walmart Duct Tape
Rockler Longworth Chuck: https://www.rockler.com
Rockler Cole Jaws: https://www.rockler.com
Much more details on Chucks in the Tips and Tricks section below!
Show and Tell
Members of the club are encouraged to submit photos and a description of the species and design of their work. Please submit these to Aaron Bryan at email@example.com no later than the 20th of each month.
Tips and Tricks
Four Jaw Chucks By Leon Olson
When I started wood turning there were no chucks. All we had were jam chucks on a face plate. Over 35 years ago someone redesigned a metal holding chuck in two ways. There are four self-centering jaws instead of three. The jaws have large surfaces for holding wood. The first one I used was in a class at Woodcraft. It was not long before my bowl blank went flying, twice. The teacher suggested the Oneway Talon chuck. That chuck stopped flying blanks. I have two Talon chucks and I like them, however, had I known then what I know now, I would have Vicmarc chucks.
The most important issue with any chuck is how well it holds. Next is versatility. What types of jaws are there? How much wood is required for holding? Vicmarc leads the market in both holding and versatility. Others have similar jaws, the question is do they work as well as Vicmarc jaws. Allan head screws attach the jaws to the chuck but there are three chucks* with jaws that snap in and out. When we turn wet wood, the screws can rust. You can prevent that by using an anti-locking compound on the screws. Next is price, some consider this the first criteria. The following chart lists all of the four jaw chucks I could find for sale in the USA. The prices are from March 2021. Some chucks are ready to use, some are not. You have to be careful that you are getting a chuck with jaws and threads for your spindle. The price listed includes all the required parts. The * marks chucks with snap in and out jaws.
Jaw Price Comparison
Chuck Jaws by Brand
If you have questions on this month's Tips & Tricks, email Leon Olson at firstname.lastname@example.org.
Why We Live in Southern Utah
June 2021 Club Attendees - Both in Person and via Zoom
Bob Belkowski, Roger Bender, Jeff Blonder, Donald Bosteed, Aaron Bryan, Richard Eastman, Locke Ettinger, Eileen Gerloff, Jack Gunn, Reiner Jakel, Vern Jensen, Grant Johnson, Pete Kaup, Jerry Keller, George Mason, Karl Mcmullin, Leon Olson, Glenn Pearson, Jim Pope, Ken Ragsdale, Brent Ross, Bruce Sharp, Mark Shelton, Todd Thorley, Bill Vincent, Chuck Wadell, Eric Walker, Chuck Zimmerman
Items for Sale by Members
Please submit items for sale to Aaron Bryan (email@example.com) before the 20th of the month to be included in the newsletter. If you have sold an item listed in the newsletter, please notify Aaron so he can remove it.
For Sale by Will Arcularius, 805-712-2174, firstname.lastname@example.org
1) Makita Compound Sliding Miter Saw, 12", Model LS1214FL. Excellent Condition. Price: $345
2) Robert Sorby Thread Cutting System. Never Used. Have both the 16 TPI and 20 TPI cutters. See page 20 in Craft Supply Catalog. Sells for $129.95 - Will take $85.
For Sale by Bob Hansen, 928-347-5718, Nova Mercury Variable Speed Mini Lathe with bed extension, 1/2 HP, 8" swing over bed; 14" swing outboard. $300. For more info contact Bob directly.